（一）aspx页面上的代码片段
<body>
<script language="javascript" type="text/javascript">
function DisplayBehindCode() {
var text="<%=Name()%>";
alert(text);
}
</script>
....
<asp:Button ID="Button1" OnClientClick="DisplayBehindCode()" runat="server" Text="Button" Visible="true" />
</body>
(二)aspx.cs后台代码
public string Name()
{
string name = "canyong";
return (name);
}
带参数办法
<body>
<script language="javascript" type="text/javascript">
function DisplayBehindCode() {
var y="34";
var x="56";
var text='<%=Name("'+x+'","'+y+'")%>';
alert(text);
}
public string Name(string strx,string stry)
{
string name = strx + "-555555--" + stry;
return (name);
}
</script>
javascript修改IMG标签的SRC实现验证码时,IE正常，火狐和google出状况
1.当点击某一按钮的时候，把图片域中的图片改变一下
<img id="randimg" src="/servlet/CreateValidateNum" width="60" height="20" />
<span style="cursor:hand" onclick="reflush();return false; ......
